An idea that unites Colorado gun store owners and mental health advocates against suicide started in New Hampshire. Then, inside Colorado’s largest church, which draws some criticism for its teachings and community relations. And, Colorado’s former poet laureate helped transform “The Scarlet Letter” into an opera.

Opera Colorado's production of Lori Laitman's "The Scarlet Letter" premieres Saturday -- and airs live on CPR Classical at 7:30 p.m. Here's a glimpse at the rehearsals, set construction and costume creation behind the scenes.